A surge protector special for railway signal equipment

Abstract

The utility model discloses a kind of railway signal equipment special surge protector, it is related to surge protection technical field.The utility model includes piezoresistance, hot melt pin, trigger locking assembly and warning assembly, trigger locking assembly includes sleeve, push tube and compression spring, the both ends of push tube are closed, push tube is slidably set in sleeve, warning assembly is set at the open end pipe orifice of sleeve, hot melt pin is fixedly set at the one end end face of the sliding slot that push tube opens, hot melt pin is passed through sleeve and is connected with piezoresistance, compression spring is set at the one end end face of push tube, the one end of compression spring away from push tube is fixedly connected in the closed end inner end face of sleeve.The utility model is when leakage current of piezoresistance reaches threshold value, hot melt pin is fused, so that the compression spring of push tube one end pushes push tube to warning assembly, so that circuit in warning assembly is connected, and send out prompt, so that railway staff can observe the state of surge protector on platform.

Description

Technical Field

[0001] This utility model belongs to the field of surge protection technology, and in particular relates to a surge protector specifically for railway signaling equipment. Background Technology

[0002] Railway signaling equipment has extremely high requirements for surge protection reliability. Traditional surge protectors, particularly the varistor, are prone to aging and failure after prolonged exposure to surge impacts, leading to increased leakage current and abnormal temperature rise. Due to the lack of a clear failure warning mechanism, maintenance personnel struggle to detect equipment malfunctions in a timely manner, posing a risk of equipment damage due to secondary surges. Therefore, there is an urgent need for a protection device with automatic fuse locking and visual alarm functions to ensure the continuous and safe operation of railway signaling systems.

[0003] To address these issues, we provide a surge protector specifically designed for railway signaling equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a surge protector specifically for railway signaling equipment. It involves sliding a push tube within a sleeve, fixing a thermoplastic pin to the end face of a groove within the push tube, and connecting the thermoplastic pin to a varistor. A compression spring is fixedly connected to one end of the push tube. When a surge voltage occurs, the surge voltage passes through the varistor, reducing its resistance and thus guiding the surge voltage to the ground wire, achieving the technical effect of protecting the railway signaling equipment. Simultaneously, the varistor will age, increasing leakage current and raising its temperature. A warning component is installed at one end of the sleeve. When the leakage current of the varistor reaches a threshold, the thermoplastic pin melts, causing the compression spring at one end of the push tube to push the push tube towards the warning component, activating the circuit in the warning component and issuing a warning, allowing railway staff to observe the surge protector's status on the platform.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a surge protector for railway signaling equipment, including a varistor, a thermal pin, a trigger locking assembly, and a warning assembly. The trigger locking assembly includes a sleeve, a push tube, and a compression spring. The two ends of the push tube are closed, and grooves are formed through the two sides of the tube wall. The push tube is slidably fitted inside the sleeve. The warning assembly is located at the open end of the sleeve. The thermal pin is fixedly located on the end face of the groove near the warning assembly. The thermal pin passes through the sleeve and is connected to the varistor. The compression spring is located on the end face of the push tube away from the warning assembly. The end of the compression spring away from the push tube is fixedly connected to the inner end face of the closed end of the sleeve.

[0007] A further feature of this invention is that the heat-melting pin includes an adhesive sheet and a heat-conducting sheet. The adhesive sheet is fixedly attached to one end face of the slide groove. A fusible post is fixedly provided on the side of the adhesive sheet away from the end face of the slide groove. The heat-conducting sheet is fixedly provided at one end of the fusible post. One end of the heat-conducting sheet passes through the sleeve. A heat-conducting sleeve is fixedly provided at the end of the heat-conducting sheet that passes through the sleeve. The heat-conducting sleeve is fixedly sleeved on the outside of the varistor.

[0008] A further configuration of this utility model is that the warning component includes a battery, a motor, a motor sleeve, and an electrode ring. The motor sleeve is fixedly fitted onto the open end of the sleeve. The battery is located at one end of the motor sleeve near the sleeve. The motor is fixedly fitted into the end of the motor sleeve away from the sleeve. The electrode ring is fixedly fitted into the opening of the motor sleeve near the sleeve. The electrode ring is connected to one electrode of the motor via a wire. An electrode contact is fixedly provided at one end of the push tube near the electrode ring. The other electrode of the motor is connected to the end of the battery near the motor via a wire. A warning rotating plate is fixedly installed on the output shaft of the motor.

[0009] A further feature of this invention is that a battery sleeve is fixedly fitted onto the outside of the battery, and the battery sleeve is fixedly fitted into the motor tube sleeve.

[0010] A further feature of this invention is that a set of conductive coils are attached to the surface of the warning rotating plate, and a set of warning lights are provided on the side of the warning rotating plate away from the motor, with the set of warning lights connected in parallel in the conductive coils.

[0011] A further feature of this invention is that a rotating plate sleeve is fixedly provided at the end of the motor sleeve away from the sleeve, the rotating plate sleeve is sleeved outside the warning rotating plate, and magnets are fixedly attached to both sides of the outer wall of the rotating plate sleeve, with the magnetic properties of the two magnets being opposite on the side that are close to each other.

[0012] A further feature of this invention is that a transparent cover is fixedly fitted inside the end of the rotating plate sleeve that is away from the motor sleeve.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model involves sliding a push tube inside a sleeve, fixing a hot-melt pin to the end face of the sliding groove inside the push tube, and connecting the hot-melt pin to a varistor. A compression spring is fixedly connected to one end of the push tube. When a surge voltage occurs, the surge voltage passes through the varistor, reducing the resistance of the varistor and thus guiding the surge voltage to the ground wire, achieving the technical effect of protecting railway signal equipment. At the same time, the varistor will age, increasing the leakage current and raising the temperature of the varistor.

[0015] 2. This utility model provides a warning component at one end of the sleeve. When the leakage current of the varistor reaches the threshold, the thermal pin melts, causing the compression spring at one end of the push tube to push the push tube toward the warning component, thus connecting the circuit in the warning component and issuing a warning, so that railway staff can observe the status of the surge protector on the platform. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a structural schematic diagram of a surge protector specifically designed for railway signaling equipment.

[0018] Figure 2 This is an exploded view of the heat-sealing pin and the trigger locking component.

[0019] Figure 3 This is an exploded view of the motor and its bushing.

[0020] Figure 4 This is an exploded view of the warning component.

[0021] Figure 5 This is a side sectional view of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Varistor, 2-Thermo-Melt Pin, 201-Adhesive Sheet, 201a-Fuse Column, 202-Heat Conductive Sheet, 202a-Heat Conductive Sleeve, 3-Trigger Locking Assembly, 301-Sleeve, 302-Push Tube, 302a-Slide Groove, 302b-Electrode Contact, 303-Compression Spring, 4-Warning Assembly, 401-Battery, 401a-Battery Ring, 402-Motor, 402a-Warning Rotating Plate, 402a-1-Conductor Coil, 402a-2-Warning Light, 403-Motor Tube Sleeve, 403a-Rotating Plate Sleeve, 403a-1-Magnet, 403a-2-Transparent Cover, 404-Electrode Ring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1

[0026] Please see Figure 1 and Figure 2This utility model is a surge protector specifically for railway signaling equipment, comprising a varistor 1, a thermocouple 2, a trigger locking assembly 3, and a warning assembly 4. The trigger locking assembly 3 includes a sleeve 301, a push tube 302, and a compression spring 303. By sliding the push tube 302 inside the sleeve 301, the thermocouple 2 is fixed to the end face of the groove 302a inside the push tube 302, and the thermocouple 2 is connected to the varistor 1. The compression spring 303 is fixedly connected to one end of the push tube 302. When a surge voltage occurs, the surge voltage passes through the varistor 1, causing the varistor 1 to... The resistance decreases, thus directing the surge voltage to the ground wire, achieving the technical effect of protecting railway signal equipment. At the same time, the varistor 1 will age, increasing the leakage current and raising the temperature of the varistor 1. By setting a warning component 4 at one end of the bushing 301, when the leakage current of the varistor 1 reaches the threshold, the thermal pin 2 melts, causing the compression spring 303 at one end of the push tube 302 to push the push tube 302 towards the warning component 4, connecting the circuit in the warning component 4 and issuing a prompt, so that railway staff can observe the status of the surge protector on the platform.

[0027] Specifically, the push tube 302 is closed at both ends, and the two sides of the push tube 302 are provided with sliding grooves 302a. The push tube 302 is slidably sleeved in the sleeve 301. The warning component 4 is set at the open end of the sleeve 301. The hot melt pin 2 is fixedly set on the end face of the sliding groove 302a near the warning component 4. The hot melt pin 2 passes through the sleeve 301 and is connected to the varistor 1. The compression spring 303 is set on the end face of the push tube 302 away from the warning component 4. The end of the compression spring 303 away from the push tube 302 is fixedly connected to the inner end face of the closed end of the sleeve 301.

[0028] Furthermore, the heat-fused pin 2 includes an adhesive piece 201 and a heat-conducting piece 202. The adhesive piece 201 is fixedly attached to one end face of the slide groove 302a. A fuse post 201a is fixedly provided on the side of the adhesive piece 201 away from the end face of the slide groove 302a. The heat-conducting piece 202 is fixedly provided at one end of the fuse post 201a. One end of the heat-conducting piece 202 passes through the sleeve 301. A heat-conducting sleeve 202a is fixedly provided at the end of the heat-conducting piece 202 passing through the sleeve 301. The heat-conducting sleeve 202a is fixedly sleeved on the outside of the varistor 1. When the leakage current of the varistor 1 increases, the temperature of the varistor 1 rises. The heat-conducting sleeve 202a transfers the heat of the varistor 1 to the heat-conducting piece 202, causing the fuse post 201a to rise in temperature and melt. This causes the compression spring 303 to push the push tube 302 toward the warning component 4, so that the circuit in the warning component 4 is connected and a prompt is issued.

[0029] The operation process in this embodiment is as follows:

[0030] When the two ends of the varistor 1 are connected to the circuit of the railway signaling equipment, the resistance of the varistor 1 decreases when it receives the surge voltage, so that the surge voltage is conducted to the grounding wire to prevent the surge voltage from damaging the circuit in the railway signaling equipment. After the varistor 1 is subjected to multiple surge voltages, it ages, which increases the leakage current of the varistor 1. The leakage current causes the varistor 1 to heat up. The heat-conducting sleeve 202a transfers the heat of the varistor 1 to the heat-conducting plate 202, which causes the fuse 201a to heat up and melt. The compression spring 303 pushes the push tube 302 toward the warning component 4, so that the circuit in the warning component 4 is connected and a warning is issued.

[0031] Example 2

[0032] Please see Figures 1 to 5 Based on Embodiment 1, the warning component 4 includes a battery 401, a motor 402, a motor sleeve 403, and an electrode ring 404. By setting the electrode ring 404 at one end of the motor sleeve 403 and setting the electrode contact 302b at one end of the push tube 302, when the heat-melting pin 2 is melted, the compression spring 303 pushes the push tube 302 toward the electrode ring 404, so that the electrode ring 404 is connected to the battery 401, thereby energizing the motor 402. The warning turntable 402a on the output shaft of the motor 402 rotates, so that railway staff can promptly detect the status of the surge protector.

[0033] Specifically, the motor sleeve 403 is fixedly fitted onto the open end of the sleeve 301. The battery 401 is located at the end of the motor sleeve 403 near the sleeve 301. The motor 402 is fixedly fitted into the end of the motor sleeve 403 away from the sleeve 301. The electrode ring 404 is fixedly fitted into the opening of the motor sleeve 403 near the sleeve 301. The electrode ring 404 is connected to one electrode of the motor 402 via a wire. An electrode contact 302b is fixedly provided at the end of the push tube 302 near the electrode ring 404. The other electrode of the motor 402 is connected to the end of the battery 401 near the motor 402 via a wire. A warning rotating plate 402a is fixedly installed on the output shaft of the motor 402.

[0034] Furthermore, a battery sleeve 401a is fixedly fitted onto the outside of the battery 401, and the battery sleeve 401a is fixedly fitted into the motor sleeve 403.

[0035] Furthermore, a set of conductive coils 402a-1 are pasted on the surface of the warning turntable 402a, and a set of warning lights 402a-2 are provided on the side of the warning turntable 402a away from the motor 402. The set of warning lights 402a-2 are connected in parallel in the conductive coils 402a-1.

[0036] Furthermore, a rotating plate sleeve 403a is fixedly provided at the end of the motor sleeve 403 away from the sleeve 301. The rotating plate sleeve 403a is sleeved on the outside of the warning rotating plate 402a. Magnets 403a-1 are fixedly attached to both sides of the outer wall of the rotating plate sleeve 403a. The magnetic properties of the two magnets 403a-1 on the side that are close to each other are opposite. When the circuit in the warning component 4 is turned on, the motor 402 rotates, causing the coil 402a-1 on the warning rotating plate 402a to cut the magnetic lines of force in the two magnets 403a-1 and generate current, so that the warning light 402a-2 shines on the rotating warning rotating plate 402a, making it easy for railway staff to notice in time.

[0037] Furthermore, a transparent cover 403a-2 is fixedly fitted inside the end of the rotating plate sleeve 403a that is away from the motor sleeve 403.

[0038] The operation process in this embodiment is as follows:

[0039] When the hot melt pin 2 is melted, the compression spring 303 pushes the push tube 302 toward the electrode ring 404, connecting the electrode ring 404 to the battery 401, thereby energizing the motor 402. The warning turntable 402a on the output shaft of the motor 402 rotates, and the conductor coil 402a-1 on the warning turntable 402a cuts the magnetic field lines in the two magnets 403a-1 and generates current, thereby causing the warning light 402a-2 to light up on the rotating warning turntable 402a, making it easier for railway staff to spot in time.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A surge protector for railway signaling equipment, comprising a varistor (1), a thermally fused pin (2), a trigger locking assembly (3), and a warning assembly (4), characterized in that: The trigger locking component (3) includes a sleeve (301), a push tube (302), and a compression spring (303). The two ends of the push tube (302) are closed. The two sides of the push tube (302) are provided with sliding grooves (302a). The push tube (302) is slidably sleeved in the sleeve (301). The warning component (4) is set at the open end of the sleeve (301). The hot melt pin (2) is fixedly set on the end face of the sliding groove (302a) near the warning component (4). The hot melt pin (2) passes through the sleeve (301) and is connected to the varistor (1). The compression spring (303) is set on the end face of the push tube (302) away from the warning component (4). The end of the compression spring (303) away from the push tube (302) is fixedly connected to the inner end face of the closed end of the sleeve (301).

2. A surge protector for railway signaling equipment according to claim 1, characterized in that: The heat-melting pin (2) includes a bonding piece (201) and a heat-conducting piece (202). The bonding piece (201) is fixedly bonded to one end face of the slide groove (302a). A fusible post (201a) is fixedly provided on the side of the bonding piece (201) away from the end face of the slide groove (302a). The heat-conducting piece (202) is fixedly provided at one end of the fusible post (201a). One end of the heat-conducting piece (202) passes through the sleeve (301). A heat-conducting sleeve (202a) is fixedly provided at one end of the heat-conducting piece (202) passing through the sleeve (301). The heat-conducting sleeve (202a) is fixedly sleeved on the outside of the varistor (1).

3. A surge protector for railway signaling equipment according to claim 1, characterized in that: The warning component (4) includes a battery (401), a motor (402), a motor sleeve (403), and an electrode ring (404). The motor sleeve (403) is fixedly fitted onto the open end of the sleeve (301). The battery (401) is located at one end of the motor sleeve (403) near the sleeve (301). The motor (402) is fixedly fitted into the end of the motor sleeve (403) away from the sleeve (301). The electrode ring (404) is fixedly fitted onto... Inside the tube opening of the motor sleeve (403) near the end of the sleeve (301), the electrode ring (404) is connected to one electrode of the motor (402) via a wire. An electrode contact (302b) is fixedly provided at one end of the push tube (302) near the electrode ring (404). The other electrode of the motor (402) is connected to one end of the battery (401) near the motor (402) via a wire. A warning rotating plate (402a) is fixedly installed on the output shaft of the motor (402).

4. A surge protector for railway signaling equipment according to claim 3, characterized in that: A battery sleeve (401a) is fixedly fitted onto the outside of the battery (401), and the battery sleeve (401a) is fixedly fitted into the motor sleeve (403).

5. A surge protector for railway signaling equipment according to claim 4, characterized in that: A set of conductive coils (402a-1) is pasted on the surface of the warning turntable (402a). A set of warning lights (402a-2) is provided on the side of the warning turntable (402a) away from the motor (402). The set of warning lights (402a-2) is connected in parallel in the conductive coils (402a-1).

6. A surge protector for railway signaling equipment according to claim 5, characterized in that: The motor sleeve (403) is fixedly provided with a rotating plate sleeve (403a) at one end away from the sleeve (301). The rotating plate sleeve (403a) is sleeved on the outside of the warning rotating plate (402a). Magnets (403a-1) are fixedly attached to both sides of the outer wall of the rotating plate sleeve (403a). The two magnets (403a-1) have opposite magnetic properties on the side that are close to each other.

7. A surge protector for railway signaling equipment according to claim 6, characterized in that: A transparent cover (403a-2) is fixedly fitted inside the end of the rotating plate sleeve (403a) away from the motor sleeve (403).

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